Click "Choose File" and select the firmware file you downloaded. Click "Upgrade" or "Update".
power it off or unplug the cable during this time, or you risk "bricking" the device. Pro Tips for India tenda d303 firmware update for india work
It is highly recommended to after a firmware update to ensure the new software works optimally. After doing this, you may need to re-configure your ISP settings: Log in to 192.168.1.1. Go to ADSL Settings or WAN Service . Choose PPPoE (for BSNL/Airtel). Click "Choose File" and select the firmware file